Polymer gel dosimetry involves the estimation of
radiation dose distribution based on radiation induced changes. Since these
phantoms undergo polymerization of monomers, we hypothesized that it would
affect the mechanical properties. We tested this hypothesis in a series of
phantom experiments and investigated the stiffness of radiated phantoms as a
function of absorbed radiation doses using Magnetic Resonance Elastography
(MRE). The results show that the stiffness of a polymer gel dosimeter is
directly correlated to the amount of the applied radiation dose and hence it
would be feasible to estimate radiation dose distribution with MRE.